Table 1.
Alternate versions of enabling factors (coverage for chiropractic and costs per visit) to be tested
| Chronic Low Back Pain1 | Chronic Neck Pain1 | |||
|---|---|---|---|---|
| No coverage (n = 218) | Some coverage (n = 590) | No coverage (n = 202) | Some coverage (n = 475) | |
| Mean (SD) # chiropractic visits/month | 2.0 (1.6) | 2.4 (2.4) | 2.3 (2.1) | 2.2 (2.0) |
| Enabling factors | ||||
| Insurance with caps on visits or costs | – | 291 (49.3%) | – | 244 (51.4%) |
| Insurance with no caps | – | 85 (14.4%) | – | 68 (14.3%) |
| Insurance with unknown caps | – | 214 (36.3%) | – | 163 (34.3%) |
| Out-of-pocket costs per visit* | ||||
| Unknown / $0 | 0 (0.0%) | 67 (11.4%) | 0 (0.0%) | 69 (14.5%) |
| $1 to $20 | 0 (0.0%) | 227 (38.5%) | 0 (0.0%) | 148 (31.2%) |
| $21 to $40 | 14 (6.4%) | 195 (33.1%) | 19 (9.4%) | 175 (36.8%) |
| $41 to $60 | 101 (46.3%) | 65 (11.0%) | 89 (44.1%) | 51 (10.7%) |
| $61 to $80 | 71 (32.6%) | 18 (3.1%) | 72 (35.6%) | 18 (3.8%) |
| $81+ | 32 (14.7%) | 18 (3.1%) | 22 (10.9%) | 14 (2.9%) |
1Data on insurance status were not available for a small percentage of patients in each sample: 44 (5.2%) for chronic low back pain and 28 (4.0%) for chronic neck pain
*Out-of-pocket costs differ significantly between those with and without some chiropractic coverage for both those with chronic low back pain and chronic neck pain, p < .001